Belichick is old school so i can definetly see him not giving a shit what the player or trainer says. here is Profootballtalks talk on it.
We're not saying the Johnson isn't impaired in some way or that his doctors are embellishing his condition. But there's a danger that someone who really isn't in bad shape will try to get a Mike Webster-type payday via exaggeration and/or fabrication.
And the fact that Johnson is bitching about Belichick barely a month after he was musing about returning to the team that Belichick coaches fairly calls Johnson's overall motives into question. Why would the guy even consider returning to the Patriots in 2006 after Junior Seau was hurt if he believes that Belichick contributed to Johnson's current plight? And why not mention when explaining that he was expecting to get a call from the Pats that there were some things that happened in the past that might make him uncomfortable about going back?
Maybe Johnson didn't say anything about it because he still hoped his phone would ring. And maybe because it didn't ring Johnson is now mad, and thus is lashing out at the team.
We're not saying that this is what's happening, but the circumstances clearly suggest that these are fair questions to raise.